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adell [148]
2 years ago
10

What is one bioethical concern with using embryonic stem cells for regenerative medicine?

Biology
2 answers:
Shalnov [3]2 years ago
8 0
<span>a)Stem cells must always be provided by a donor who is financially compensated.</span>
Marysya12 [62]2 years ago
5 0

The right answer is A.

Capable of repairing or replacing damaged tissue, stem cells pave the way for promising regenerative medicine, the manufacture of innovative medicines and the development of new therapeutics. Nevertheless, they raise many ethical questions, especially because they sometimes involve working on embryos.

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In chickens, comb shape is determined by two independent genes (R and P). A walnut comb is produced when at least one dominant a
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Answer:

Option B, Rr pp × rr Pp

Explanation:

Given

Walnut Comb is produces when  one dominant allele R is present at one gene locus and at least one dominant allele P is present at a second gene locus - R* P*

Rose Comb - at least one dominant allele is present at the first locus and two recessive alleles are present at the second locus - R* pp

Pea comb - two recessive alleles are present at the first locus and at least one dominant allele is present at the second  - rr P*

Single comb - two recessive alleles are present at the first and the second locus  - rrpp

Parent are rose combed and pea combed

For being rose genotype must be R* pp

and for being pea combed genotype must be rr P*

Rr pp x rr Pp

will  produce

Walnut comb  with genotype Rr Pp

Single comb  with genotype rrpp

and pea comb  with genotype rrPp

Hence, option B is correct

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3 years ago
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